<template>
    <div class="app-container">
      课程列表
<!--查询表单-->
    <el-form :inline="true" class="demo-form-inline">
      <el-form-item>
        <el-input v-model="courseQuery.name" placeholder="课程名称"/>
      </el-form-item>

      <el-form-item>
        <el-select v-model="courseQuery.status" clearable placeholder="课程状态">
          <el-option :value="1" label="已发布"/>
          <el-option :value="2" label="未发布"/>
        </el-select>
      </el-form-item>

      <el-button type="primary" icon="el-icon-search" @click="getList()">查询</el-button>
      <el-button type="default" @click="resetData()">清空</el-button>
    </el-form>

    <!-- 表格 -->
    <el-table
      :data="courseList"
      border
      fit
      highlight-current-row>
      <el-table-column
        label="序号"
        width="70"
        align="center">
        <template slot-scope="scope">
          {{ (page - 1) * limit + scope.$index + 1 }}
        </template>
      </el-table-column>
      <el-table-column prop="title" label="课程名称" width="300" />
      <el-table-column label="课程状态" width="120">
        <template slot-scope="scope">
            {{scope.row.status==='Normal'?'已发布':'未发布'}}
        </template>
      </el-table-column>
      <el-table-column prop="lessonNum" label="课时数" width="100" />
      <el-table-column prop="gmtCreate" label="添加时间" width="200"/>
      <el-table-column prop="viewCount" label="浏览数量" width="150" />
      <el-table-column label="操作" align="center">
        <template slot-scope="scope">
          <router-link :to="'/teacher/edit/'+scope.row.id">
            <el-button type="primary" size="mini" icon="el-icon-edit">编辑课程基本信息</el-button>
          </router-link>
          <router-link :to="'/teacher/edit/'+scope.row.id">
            <el-button type="primary" size="mini" icon="el-icon-edit">编辑课程大纲</el-button>
          </router-link>
          <el-button type="danger" size="mini" icon="el-icon-delete" @click="removeDataById(scope.row.id)">删除课程信息</el-button>
        </template>
      </el-table-column>
    </el-table>

<!-- 分页 -->
    <el-pagination
      :current-page="page" 
      :page-size="limit"
      :total="total"
      style="padding: 30px 0; text-align: center;"
      layout="total, prev, pager, next, jumper"
      @current-change="getList"
    />

    </div>
</template>
<script>
//引入调用course.js文件
import course from '@/api/edu/course'

export default {
    // 写核心代码位置
    data() { //定义变量和初始值
        return {
            courseList: null, //查询之后接口返回集合
            page: 1,//当前页
            limit: 5, //每页记录数
            total: 0, //总记录数
            courseQuery: {} //条件封装对象
            
        }
    },
    created() { //页面渲染之前执行，调用methods定义的方法
        this.getList();
    },
    methods: {  //创建具体方法，调用course.js方法
        //课程列表的方法
        getList() {
            course.getListCourse()
                   .then(response => {
                       //response接口返回的数据
                    //    console.log(response);
                    this.courseList = response.data.list;
                    // this.total = response.data.total;
                    // console.log(this.teacherList);
                    // console.log(this.total);
                   }) //请求成功
                   .catch(error => {
                        console.log(error);
                   }) //请求失败
        },
        resetData() {
          //表单输入项数据清空
          this.courseQuery = {};
          //查询所有数据
          this.getList();
        },
        removeDataById(id) {
          this.$confirm('此操作将删除课程记录, 是否继续?', '提示', {
            confirmButtonText: '确定',
            cancelButtonText: '取消',
            type: 'warning'
          }).then(() => {  //点击确定，执行then方法
            //调用删除的方法
            course.deleteCourse(id)
            .then(response=> { //删除成功
            //提示信息
            this.$message({ //删除成功
            type: 'success',
            message: '删除课程成功'
            });
            //回到列表页面
            this.getList();
            })
          });
        }
    }
}
</script>